|Tie no|Home team|Score|Away team|Attendance|
|---|---|---|---|---|
|1|Chesterfield|1–0|Nottingham Forest|15 February 1997|
|2|Leicester City|2–2|Chelsea|16 February 1997|
|Replay|Chelsea|1–0|Leicester City|26 February 1997|
|3|Derby County|3–2|Coventry City|26 February 1997|
|4|Manchester City|0–1|Middlesbrough|15 February 1997|
|5|Bradford City|0–1|Sheffield Wednesday|16 February 1997|
|6|Wimbledon|2–1|Queens Park Rangers|15 February 1997|
|7|Leeds United|2–3|Portsmouth|15 February 1997|
|8|Birmingham City|1–3|Wrexham|15 February 1997|

Question: what is the difference of points in the game between birmingham city and wrexham?
Answer: 2